The glasses shown in the picture (Lacoste brand) are made of the following materials: Frame: Made of bio-injected plastic or acetate. These are high-quality plastic materials, lightweight, flexible, and impact-resistant to provide comfort during daily and sports use. [1] ( [2] ( (Lenses): Made of polycarbonate or reinforced scratch-resistant plastic. (Lens type written on it: Polarized lenses provide full UV400 protection against UV rays, and are specially designed to reduce sun glare. New, I received them as a gift. Frame Material: Plastic Lens Material: Polycarbonate Lens Features: UV Protection Type: Sunglasses